[Henry Schmidt]

Creating a good seal in these air cooled engines is and has always been a challenge.
Ever since we started working with JE back in the early 90s (when they needed .007" clearance) ring have been an issue.
We try to avoid the shelve pistons from JE and CP and special order our pistons with Goetze ring packs. It cost more, and take longer but the results are generally positive.
The Goetze oil ring is easier to gap (many 3 piece rings recommend "don't gap" and Nikasil coating seems to prefer the one piece oil ring to control oil consumption. Material properties, coating performance and ring design are decades tested and track proven.
Not going to the track, we seen Goetze rings still performing well way into the 200K range.